<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        var name = "李四"
        var age = 19;
        // 键（key）值（value）同名可以简写
        var obj = {
            name,
            age
        }
        console.log(obj)
    </script>
</body>
</html>